Hungarian historical solar drawings
 
Our observatory hosts two historical solar image databases containing heritages of two former observatories.  The first of them was observed at Ógyalla Observatory founded by Miklós Konkoly-Thege (1842-1916) .  We have solar observations taken here between 1872 and 1891, and the digitization of this dataset was supported by the European Community's Seventh Framwork Program (FP7 SP1-Cooperation) under grant agreement No. 218816  in 2009.
The other set of solar drawings was observed at  the Haynald Observatory in Kalocsa between 1880 to 1919.  The digitization of the Kalocsa material has been completed in 2000 supported by the Hungarian Science Foundation and the millenial Cultural Heritage Program.

ÓGYALLA OBSERVATORY
1872
(76 days)
 1873
(14 days)
 1874
(81 days)
 1875
(45 days)
 1876
(23 days)
 1877
(40 days)
 1878
(38 days)
 1879
(74 days)
1880

 1881
(202 days)
 1882
(224 days)
 1883
(203 days)
 1884
(191 days)
 1885
(221 days)
 1886
(178 days)
 1887
(129 days)
 1888
(111 days)
 1889
(70 days)
1890
(73 days)
 1891
(145 days)







HAYNALD OBSERVATORY

1880
(92 days)
 1881
 1882 1883
(107 days)
 1884
(210 days)
 1885
(248 days)
 1886
(227 days)
 1887
(197 days)
 1888
(154 days)
 1889
1890
 1891
(253 days)
 1892
(234 days)
 1893
(165 days)
 		1894
(271 days)
 1895
(257 days)
 1896
(129 days)
 1897
(61 days)
 1898
(147 days)
 1899
(156 days)
1900
(127 days)
 1901
(67 days)
 1902
(116 days)
 1903
(227 days)
 1904
(185 days)
 1905
(213 days)
 1906
(257 days)
 1907
(259 days)
 1908
(256 days)
 1909
(254 days)
1910
(246 days)
 1911
(176 days)
 1912
(119 days)
 1913
(68 days)
 1914
(137 days)
 1915
(216 days)
 1916
(231 days)
 1917
(15 days)
 1918
(64 days)
 1919
(14 days)